Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Ainsworth, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
319-657 A ANWOIAXORS1  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 634      
319-657 0   444G AUREON COMMUNICATIONS, LLC 634   2021-10-18   
319-657 1   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 634      
319-657 2   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 634      
319-657 3   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 634      
319-657 4   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 634      
319-657 5   221F ONVOY, LLC - IA 634   2020-06-27   
319-657 7   508J CENTURYLINK COMMUNICATIONS LLC 634   2016-10-13   
319-657 8   221F ONVOY, LLC - IA 634   2021-03-13   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.